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Repeated Multiple-Frequency VLA Surveys of the ρ Ophiuchi Cloud

Published online by Cambridge University Press:  04 August 2017

T. Montmerle ,
P. André ,
E. D. Feigelson ,
P. Stine  and
J. Bouvier
T. Montmerle
Affiliation:
Centre d'Etudes Nucléaires de Saclay, France
P. André
Affiliation:
Centre d'Etudes Nucléaires de Saclay, France
E. D. Feigelson
Affiliation:
Penn State University, USA
P. Stine
Affiliation:
Penn State University, USA
J. Bouvier
Affiliation:
Institut d'Astrophysique de Paris, France

Extract

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Our goal was to look for radio non-thermal emission from active PMS stars, as suggested by the presence of numerous, highly variable X-rays sources in the cloud (Montmerle et al. 1983), and by optical periodicities probably linked with starspots (Bouvier and Bertout, in prep.). Previous radio surveys have been done by Brown and Zuckermann (1975), and Falgarone and Gilmore (1981). Emission mechanisms are mainly thermal (free-free, from H II regions, winds, accretion flows; gyrosynchrotron), and non-thermal (gyrosynchrotron from flares; synchrotron in winds, White 1985; corotating interaction regions, Mullan 1984).

Type
I. Star Forming Processes in the Solar Neighborhood
Information
Symposium - International Astronomical Union , Volume 115: Star Forming Regions , 1987 , pp. 45 - 47
Copyright
Copyright © Reidel 1987 

References

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